ParametricSurface bug

[robertwb]

def f(x,y): return cos(x)*sin(y), sin(x)*sin(y), cos(y)+log(tan(y/2))+0.2*x
show(ParametricSurface(f, (srange(0,12.4,0.1), srange(0.1,2,0.1))))

doesn't render. Also

[08:48am] williamstein: This should work but doesn't:
[08:48am] williamstein: S = ParametricSurface(lambda (x,y):(cos(x),
sin(x), y), domain=(range(10),range(10)))

Component: graphics

Issue created by migration from https://trac.sagemath.org/ticket/1515

[robertwb]

Attachment: parametric-surface.diff.gz

[robertwb]

comment:1

Now the first example works. Also, the second example almost does

S = ParametricSurface(lambda x,y:(cos(x),sin(x), y), domain=(range(10),range(10)))

(Note the missing ()'s, it expects to arguments, not a tuple).

[sagetrac-mabshoff]

comment:2

Merged in 2.9.rc0.